United States of America

Checklist of Endemic Mammal Species

This list of mammal species found exclusively in the United States of America is based on the taxonomy used in the Mammal Diversity Database (2020). For further details on possible inaccuracies in the list see Sources & Caveats.

American Society of Mammalogists (2020) Mammal Diversity Database, Version 1.2 http://www.mammaldiversity.org, accessed 24 September 2020. An online version can be found here.

Additional species recognized more recently by the Mammal Diversity Database are listed at the bottom of the page.

Mesoplodon perrini (Artiodactyla - Ziphiidae) Perrin's Beaked Whale

Canis rufus (Carnivora - Canidae) Red Wolf

Urocyon littoralis (Carnivora - Canidae) Island Fox

Spilogale putorius (Carnivora - Mephitidae) Allegheny Spotted Skunk

Neomonachus schauinslandi (Carnivora - Phocidae) Hawaiian Monk Seal

Eumops floridanus (Chiroptera - Molossidae) Florida Bonneted Bat

Stenoderma rufum (Chiroptera - Phyllostomidae) Red Fruit Bat

Corynorhinus rafinesquii (Chiroptera - Vespertilionidae) Rafinesque's Big-eared Bat

Lasiurus seminolus (Chiroptera - Vespertilionidae) Seminole Bat

Lasiurus semotus (Chiroptera - Vespertilionidae) Hawaiian Hoary Bat

Myotis austroriparius (Chiroptera - Vespertilionidae) South-eastern Myotis

Myotis grisescens (Chiroptera - Vespertilionidae) Gray Myotis

Myotis sodalis (Chiroptera - Vespertilionidae) Indiana Myotis

Blarina carolinensis (Eulipotyphla - Soricidae) Southern Short-tailed Shrew

Blarina hylophaga (Eulipotyphla - Soricidae) Elliot's Short-tailed Shrew

Blarina peninsulae (Eulipotyphla - Soricidae) Everglades Short-tailed Shrew

Blarina shermani (Eulipotyphla - Soricidae) Sherman's Short-tailed Shrew

Sorex fontinalis (Eulipotyphla - Soricidae) Maryland Shrew

Sorex jacksoni (Eulipotyphla - Soricidae) Saint Lawrence Island Shrew

Sorex longirostris (Eulipotyphla - Soricidae) South-eastern Shrew

Sorex lyelli (Eulipotyphla - Soricidae) Mount Lyell Shrew

Sorex nanus (Eulipotyphla - Soricidae) Dwarf Shrew

Sorex pribilofensis (Eulipotyphla - Soricidae) Pribilof Island Shrew

Sorex sonomae (Eulipotyphla - Soricidae) Fog Shrew

Sorex tenellus (Eulipotyphla - Soricidae) Inyo Shrew

Brachylagus idahoensis (Lagomorpha - Leporidae) Pygmy Rabbit

Sylvilagus aquaticus (Lagomorpha - Leporidae) Swamp Rabbit

Sylvilagus cognatus (Lagomorpha - Leporidae) Manzano Mountain Cottontail

Sylvilagus obscurus (Lagomorpha - Leporidae) Appalachian Cottontail

Sylvilagus palustris (Lagomorpha - Leporidae) Marsh Rabbit

Sylvilagus transitionalis (Lagomorpha - Leporidae) New England Cottontail

Arborimus albipes (Rodentia - Cricetidae) White-footed Vole

Arborimus longicaudus (Rodentia - Cricetidae) Red Tree Vole

Arborimus pomo (Rodentia - Cricetidae) Sonoma Tree Vole

Clethrionomys californicus (Rodentia - Cricetidae) Western Red-backed Vole

Dicrostonyx nelsoni (Rodentia - Cricetidae) Nelson's Collared Lemming

Dicrostonyx unalascensis (Rodentia - Cricetidae) Unalaska Collared Lemming

Microtus abbreviatus (Rodentia - Cricetidae) Insular Vole

Microtus canicaudus (Rodentia - Cricetidae) Gray-tailed Vole

Microtus dukecampbelli (Rodentia - Cricetidae) Florida Salt Marsh Vole

Microtus mogollonensis (Rodentia - Cricetidae) Mogollon Vole

Neofiber alleni (Rodentia - Cricetidae) Round-tailed Muskrat

Neotoma floridanus (Rodentia - Cricetidae) Eastern Woodrat

Neotoma fuscipes (Rodentia - Cricetidae) Dusky-footed Woodrat

Neotoma lepida (Rodentia - Cricetidae) Desert Woodrat

Neotoma magister (Rodentia - Cricetidae) Allegheny Woodrat

Neotoma stephensi (Rodentia - Cricetidae) Stephens' Woodrat

Ochrotomys nuttalli (Rodentia - Cricetidae) Golden Mouse

Oryzomys palustris (Rodentia - Cricetidae) Common Marsh Rice Rat

Peromyscus attwateri (Rodentia - Cricetidae) Texas Deermouse

Peromyscus gossypinus (Rodentia - Cricetidae) Cotton Deermouse

Peromyscus laceianus (Rodentia - Cricetidae) Northern White-ankled Deermouse

Peromyscus polionotus (Rodentia - Cricetidae) Oldfield Deermouse

Podomys floridanus (Rodentia - Cricetidae) Florida Deermouse

Reithrodontomys humulis (Rodentia - Cricetidae) Eastern Harvest Mouse

Reithrodontomys raviventris (Rodentia - Cricetidae) Salt-marsh Harvest Mouse

Geomys attwateri (Rodentia - Geomyidae) Attwater's Pocket Gopher

Geomys breviceps (Rodentia - Geomyidae) Baird's Pocket Gopher

Geomys jugossicularis (Rodentia - Geomyidae) Hall's Pocket Gopher

Geomys knoxjonesi (Rodentia - Geomyidae) Jones's Pocket Gopher

Geomys lutescens (Rodentia - Geomyidae) Sand Hills Pocket Gopher

Geomys pinetis (Rodentia - Geomyidae) South-eastern Pocket Gopher

Geomys streckeri (Rodentia - Geomyidae) Strecker's Pocket Gopher

Geomys texensis (Rodentia - Geomyidae) Llano Pocket Gopher

Thomomys bulbivorus (Rodentia - Geomyidae) Camas Pocket Gopher

Thomomys clusius (Rodentia - Geomyidae) Wyoming Pocket Gopher

Thomomys idahoensis (Rodentia - Geomyidae) Idaho Pocket Gopher

Thomomys mazama (Rodentia - Geomyidae) Western Pocket Gopher

Thomomys monticola (Rodentia - Geomyidae) Mountain Pocket Gopher

Thomomys townsendii (Rodentia - Geomyidae) Townsend's Pocket Gopher

Dipodomys agilis (Rodentia - Heteromyidae) Agile Kangaroo Rat

Dipodomys californicus (Rodentia - Heteromyidae) California Kangaroo Rat

Dipodomys elator (Rodentia - Heteromyidae) Texas Kangaroo Rat

Dipodomys heermanni (Rodentia - Heteromyidae) Heermann's Kangaroo Rat

Dipodomys ingens (Rodentia - Heteromyidae) Giant Kangaroo Rat

Dipodomys microps (Rodentia - Heteromyidae) Chisel-toothed Kangaroo Rat

Dipodomys nitratoides (Rodentia - Heteromyidae) San Joaquin Kangaroo Rat

Dipodomys panamintinus (Rodentia - Heteromyidae) Panamint Kangaroo Rat

Dipodomys stephensi (Rodentia - Heteromyidae) Stephens' Kangaroo Rat

Dipodomys venustus (Rodentia - Heteromyidae) Narrow-faced Kangaroo Rat

Microdipodops megacephalus (Rodentia - Heteromyidae) Dark Kangaroo Mouse

Microdipodops pallidus (Rodentia - Heteromyidae) Pallid Kangaroo Mouse

Perognathus alticola (Rodentia - Heteromyidae) White-eared Pocket Mouse

Perognathus inornatus (Rodentia - Heteromyidae) San Joaquin Pocket Mouse

Perognathus mollipilosus (Rodentia - Heteromyidae) Great Basin Pocket Mouse

Ammospermophilus nelsoni (Rodentia - Sciuridae) Nelson's Antelope Squirrel

Cynomys gunnisoni (Rodentia - Sciuridae) Gunnison's Prairie Dog

Cynomys leucurus (Rodentia - Sciuridae) White-tailed Prairie Dog

Cynomys parvidens (Rodentia - Sciuridae) Utah Prairie Dog

Marmota broweri (Rodentia - Sciuridae) Alaska Marmot

Marmota olympus (Rodentia - Sciuridae) Olympic Marmot

Neotamias alpinus (Rodentia - Sciuridae) Alpine Chipmunk

Neotamias canipes (Rodentia - Sciuridae) Gray-footed Chipmunk

Neotamias cinereicollis (Rodentia - Sciuridae) Gray-collared Chipmunk

Neotamias ochrogenys (Rodentia - Sciuridae) Yellow-cheeked Chipmunk

Neotamias palmeri (Rodentia - Sciuridae) Palmer's Chipmunk

Neotamias panamintinus (Rodentia - Sciuridae) Panamint Chipmunk

Neotamias quadrimaculatus (Rodentia - Sciuridae) Long-eared Chipmunk

Neotamias quadrivittatus (Rodentia - Sciuridae) Colorado Chipmunk

Neotamias rufus (Rodentia - Sciuridae) Hopi Chipmunk

Neotamias senex (Rodentia - Sciuridae) Shadow Chipmunk

Neotamias siskiyou (Rodentia - Sciuridae) Siskiyou Chipmunk

Neotamias sonomae (Rodentia - Sciuridae) Sonoma Chipmunk

Neotamias speciosus (Rodentia - Sciuridae) Lodgepole Chipmunk

Neotamias umbrinus (Rodentia - Sciuridae) Uinta Chipmunk

Tamiasciurus fremonti (Rodentia - Sciuridae) Fremont's Squirrel

Urocitellus armatus (Rodentia - Sciuridae) Uinta Ground Squirrel

Urocitellus beldingi (Rodentia - Sciuridae) Belding's Ground Squirrel

Urocitellus brunneus (Rodentia - Sciuridae) Idaho Ground Squirrel

Urocitellus canus (Rodentia - Sciuridae) Merriam's Ground Squirrel

Urocitellus elegans (Rodentia - Sciuridae) Wyoming Ground Squirrel

Urocitellus mollis (Rodentia - Sciuridae) Piute Ground Squirrel

Urocitellus townsendii (Rodentia - Sciuridae) Townsend's Ground Squirrel

Urocitellus washingtoni (Rodentia - Sciuridae) Washington Ground Squirrel

Xerospermophilus mohavensis (Rodentia - Sciuridae) Mohave Ground Squirrel

The following additional species were recognized after the version of the ASM Mammal Diversity Database listed above. These 11 species added to the 115 listed above total 126 endemic mammal species for the United States.

(# indicates a species that is considered endemic due to a different concept of species boundaries as a result of splits than is used for the animal with the same scientific name in the 2020 ASM Mammal Diversity Database)

Balaenoptera ricei (Artiodactyla - Balaenopteridae) Rice's Whale

Myotis relictus (Chiroptera - Vespertilionidae) Relict Little Brown Myotis

Geomys brazensis (Rodentia - Geomyidae) David's Pocket Gopher

Neotamias cratericus (Rodentia - Sciuridae) Crater Chipmunk

Neotamias grisescens (Rodentia - Sciuridae) Coulee Chipmunk

Otospermophilus douglasii (Rodentia - Sciuridae) Douglas' Ground Squirrel

Zapus luteus (Rodentia - Zapodidae) Southern Meadow Jumping Mouse

Zapus montanus (Rodentia - Zapodidae) Central Pacific Jumping Mouse

Zapus oregonus (Rodentia - Zapodidae) Oregon Jumping Mouse

Zapus pacificus (Rodentia - Zapodidae) South Pacific Jumping Mouse

Zapus princeps # (Rodentia - Zapodidae) South-western Jumping Mouse